Users should note the following before buying HTF questions (1) investigate the evaporation products and safety - Flash point (open) standard target, the initial boiling point of not less than its maximum operating temperature of HTF how much a pound, distillates Cheng is quite narrow, lighted relatively high. Refined depth (2) examine the product - appearance is light yellow transparent liquid, storage stability HTF wholesale, no discoloration or precipitation occurs after exposure. Not more than 0.1% residual carbon, the content of the distillate is not more than 0.2%. Cold flow properties (3) examine the product - HTF according to the ambient temperature region in which the user and device, select the appropriate low temperature performance. QB and QC pour point of not more than -9 ℃ HTF, low kinematic viscosity (0 ℃ or lower temperature) is relatively low. HTF method to determine the nature of the carbon residue is polycyclic aromatic hydrocarbons, resin and asphaltene mixture by the intense heat in the absence of sufficient air condition is easy to break down, dehydrogenation condensation of carbon residue. Carbon residue can roughly determine the size of the HTF temperature coking tendency in use. Coke and metal heat transfer coefficient vary greatly increase energy consumption, so the carbon residue is the main factor affecting the HTF. HTF wholesale, Fengqiu County Taihang Chemical Co., Hebi HTF provided by Fengqiu County Taihang Chemical Co., Ltd. Fengqiu County Taihang Chemical Co., Ltd. (www.hndaoreyou.com) Henan Xinxiang, fuel oil leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Fengqiu County Taihang Chemical Co. led the staff warmly welcome all inquiries negotiations to create Fengqiu County Taihang Chemical Co., a better future.